Sullivan P K, Varma M, Rozzelle A A
Department of Plastic Surgery at the Brown University School of Medicine, Providence, RI, USA.
Plast Reconstr Surg. 1996 Feb;97(2):327-35; discussion 336-7. doi: 10.1097/00006534-199602000-00008.
Nasal reconstruction may best be carried out with bone grafting in certain cases of loss of structural support. In order to optimize both the aesthetic and functional results of bone-graft nasal reconstruction, we studied the shape and thickness of the normal human nasal bone. Sixty Caucasian skull nasal bones were measured by width throughout their length at three planes of depth. Seventeen Caucasian cadaver nasal bones were examined to determine the thickness of the bone throughout its length at three sagittal planes. The results showed that the nasal bone was widest at the nasofrontal suture (14 mm), narrowest at the nasofrontal angle (10 mm), and then widened again to a maximum width of 12 mm about 9 to 12 mm inferior to the nasofrontal angle. The nasal bone was thickest superiorly at the nasofrontal angle (average 6 mm) and progressively thinned toward the tip. It was 3 to 4 mm thick in the critical area where screws are most commonly placed for fixation (5 to 10 mm inferior to the nasofrontal angle). From these data, three-dimensional models of the normal nasal bone shape were formulated and used in clinical bone-graft cases.
在某些结构支撑缺失的情况下，鼻再造术最好采用骨移植来进行。为了优化骨移植鼻再造术的美学和功能效果，我们研究了正常人类鼻骨的形状和厚度。对60块白种人头骨的鼻骨在三个深度平面上沿其长度测量宽度。对17块白种人尸体的鼻骨进行检查，以确定在三个矢状平面上沿其长度的骨厚度。结果显示，鼻骨在鼻额缝处最宽（14毫米），在鼻额角处最窄（10毫米），然后在鼻额角下方约9至12毫米处再次变宽至最大宽度12毫米。鼻骨在鼻额角处最厚（平均6毫米），并向鼻尖逐渐变薄。在最常用于固定螺钉的关键区域（鼻额角下方5至10毫米），其厚度为3至4毫米。根据这些数据，制定了正常鼻骨形状的三维模型，并应用于临床骨移植病例。
